I purchased this
Hurst T-Handle shifter knob from Auto Zone for $14.99. It is
a universal fit and has an adaptor to fit the stock Mustang
shifter. I wanted the shifter bar to show but it was black
and not very atteractive. I wanted the shifter to be chrome
reminiscent of vintage shifter handles. I bought a chrome 3"
plumbing nipple and cut it to size to fit over the stock
shifter. I then inverted the shifter boot and placed a rubber
band around it. When it is flipped aound, the
shifter boot fits snugly around the nipple.